The series tells the story of Oh Ha-rin, who travels to the past through mysterious photos left by her first love, Ji Seo-jun. Since they were eight years old, they had been close friends, but he died by suicide on her birthday ten years ago.

Cast:YERI, Yang Hong-seok, Lee Sang-jun, Kim Gyeol-yu, Ju Hyeon,

Genre:Sci-Fi & Fantasy, Drama, Mystery,

country:South Korea,

Production:Playlist Studio,